n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 0 |
6 | 1 |
7 | 3 |
8 | 3 |
9 | 1 |
10 | 6 |
11 | 15 |
12 | 15 |
13 | 75 |
14 | 126 |
15 | 71 |
16 | 397 |
17 | 786 |
18 | 550 |
19 | 3043 |
20 | 5730 |
21 | 3660 |
22 | 20610 |
23 | 39843 |
24 | 26407 |
25 | 149468 |
26 | 288070 |
27 | 188649 |
28 | 1074387 |
29 | 2082753 |
30 | 1372608 |
31 | 7852896 |
32 | 15252825 |
33 | 10045040 |
34 | 57692788 |
35 | 112347998 |
36 | 74107005 |
37 | 427035846 |
38 | 833163180 |
[0,0,0,0,0,1,3,3,1,6,15,15,75,126,71,397,786,550, 3043,5730,3660,20610,39843,26407,149468,288070, 188649,1074387,2082753,1372608,7852896,15252825, 10045040,57692788,112347998,74107005,427035846, 833163180] |